NEW ORLEANS, La. — The FBI and local authorities have shared additional details on the suspect in the deadly attack in New Orleans on New Year’s Day that claimed at least 15 lives and injured dozens more.

Shamsud-Din Bahar Jabbar, 42, drove into a crowd of people along Bourbon Street around 3:15 a.m., according to the FBI. Police in New Orleans say they believe it was an intentional act and that Jabbar did not act alone.

After finding an ISIS flag in Jabbar’s truck, the FBI says they are investigating this attack as an act of terrorism.

Who is Shamsud-Din Jabbar?

The FBI confirmed that Jabbar is a U.S. citizen from Texas and a veteran of the United States Army.

Authorities say they are working to determine if Jabbar has any known affiliations with ISIS.

Georgia State University officials confirmed to WSB Radio that Jabbar attended Georgia State University. The school confirmed that he attended from 2015 to 2017 and graduated with a degree in Computer Information Systems.

Officials recently announced the Sugar Bowl between the University of Georgia and Notre Dame was postponed until 3 p.m. CT/4 p.m. EST on Jan. 2.

New Orleans Police Commissioner Anne Kirkpatrick said the driver was “hell-bent on creating the carnage and the damage that he did.”

“It was very intentional behavior. This man was trying to run over as many people as he could,” Kirkpatrick said.